Herein, we used a metabolomics approach to identify biomarkers of Fusarium wilt infection in watermelon. The observed metabolic profiles of infected plants were genotype specific and distinct in leaf and stem tissues compared with roots. The leaf tissue of Fusarium wilt-symptomatic plants had detectable or elevated levels of jasmonic acid–isoleucine, abscisic acid, indole-3-acetic acid, and melatonin compared to their asymptomatic and healthy plants of other varieties. In addition, leaf tissue of symptomatic plants showed increased contents of arginine, aspartic acid, citrulline, histidine, valine, lysine, and phthalic acid. These differentiating metabolites can be used to monitor or diagnose Fusarium wilt in watermelon plants.

中文翻译：

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基于代谢组学的西瓜枯萎病的生物标记

在这里，我们使用了一种代谢组学方法来鉴定西瓜枯萎病感染的生物标记。与根相比，观察到的被感染植物的代谢谱是基因型特异性的，在叶和茎组织中是不同的。与其他品种的无症状和健康植物相比，镰刀菌枯萎病有症状植物的叶片组织具有可检测或升高的茉莉酸-异亮氨酸，脱落酸，吲哚-3-乙酸和褪黑激素水平。此外，有症状植物的叶片组织中精氨酸，天冬氨酸，瓜氨酸，组氨酸，缬氨酸，赖氨酸和邻苯二甲酸的含量增加。这些差异化的代谢产物可用于监测或诊断西瓜植物枯萎病。